电测与仪表Issue(23)：18-23,6.
浪涌干扰下电子式电压互感器的测量准确度研究
Measurement Accuracy of EVT during the Surge
摘要
Abstract
Electronic transformers( ETs)are the most important equipment of the smart grid. Due of the use of many optical and electronic devices and long-term operation under high voltage side or low voltage part of primary equip-ment,the ETs are easy interfered by the complex electromagnetic environment. To improve measurement accuracy of electronic voltage transformer( EVT)during the surge test,the paper first analyzes the reason,and then put forward the solution to improve the reliability under electromagnetic inference. Two protection schemes for the output and input of the power are presented,and theoretical analysis and experimental verification are performed. Therefore,the meas-urement accuracy problem of EVT during the surge can be solved,and the reliability of EVT in practical applications is improved.关键词
智能电网/电子式电压互感器/浪涌/可靠性/测量准确度Key words
smart grid/electronic voltage transformer( EVT)/surge/reliability/measurement accuracy分类
信息技术与安全科学引用本文复制引用
胡蓓,冯翔翔,唐鹏,熊俊军..浪涌干扰下电子式电压互感器的测量准确度研究[J].电测与仪表,2014,(23):18-23,6.
